Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in C:\xampp\htdocs\Restaurant-0.3.1\vendor\maatwebsite\excel\src\ExcelServiceProvider.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Restaurant-0.3.1\vendor\maatwebsite\excel\src\ExcelServiceProvider.php on line 18